53642444 has 12 divisors (see below), whose sum is σ = 95160744. Its totient is φ = 26453664.

The previous prime is 53642443. The next prime is 53642461. The reversal of 53642444 is 44424635.

It is a self number, because there is not a number n which added to its sum of digits gives 53642444.

It is not an unprimeable number, because it can be changed into a prime (53642441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91562 + ... + 92145.

It is an arithmetic number, because the mean of its divisors is an integer number (7930062).

Almost surely, 2^53642444 is an apocalyptic number.

It is an amenable number.

53642444 is a deficient number, since it is larger than the sum of its proper divisors (41518300).

53642444 is a wasteful number, since it uses less digits than its factorization.

53642444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183784 (or 183782 counting only the distinct ones).

The product of its digits is 46080, while the sum is 32.

The square root of 53642444 is about 7324.1002177742. The cubic root of 53642444 is about 377.1402218157.

The spelling of 53642444 in words is "fifty-three million, six hundred forty-two thousand, four hundred forty-four".